Compared to pure water, an aqueous solution of calcium chloride has what?

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6